Appendix:Evolutionary Stones

Evolutionary Stones are a set of items which evolve certain Pokémon species. Other than levelling up and having maximum happiness with the trainer, applying Evolutionary Stones is also one of the main methods of evolution.

About
There are 11 kinds of Evolutionary Stones currently, with Ice Stone being the newest addition, introduced in the most recent core series game Pokémon Sun and Moon. Except for Ice Stone, all Evolutionary Stones are available in Pokémon Brick Bronze, yet the rarity differs greatly -- 7 kinds of stones are commonly dug out in Lagoona Trenches (5 of them being purchasable at the Stone Shop in Anthian City - Shopping District as well), while the remaining 3 can only be picked up on field and are very scarce for now.

Most of the stones are directly used on a Pokémon to trigger evolution that cannot be cancelled, with the exception of Oval Stone, which must be given to Happiny for holding, and a level up during daytime will initiate evolution once the stone is held. All kinds of Evolutionary Stones are consumed upon a successful evolution. Some stones also have unique usages -- Dawn Stone only works for a specific gender of the compatible Pokémon, while Ice Stone only activates when applied to Ice-type Alola Form Pokémon.

Certain Pokémon species can even have access to different evolved forms through different stones, with the most famous example being the earliest Eeveelutions. Another well-known branch evolution example is that Gloom evolves into Vileplume through Leaf Stone and Bellossom through Sun Stone.

It is noted that most Pokémon evolving through these stones have their movesets deteriorate drastically after evolution, some of them learning no new and stronger attacks at all. Thus it is not recommended to evolve them early on, except Eevee, Happiny, Togetic, Kirlia and Snorunt.

List of Evolutionary Stones
Here is a list of all known Evolutionary Stones and where they are available for mining, picking up or purchasing.

Trivia

 * All compatible Pokémon that use the Leaf Stone to evolve are Grass-type Pokémon.
 * The only Pokémon without a dual-typing after using the Leaf Stone is Simisage.
 * All Pokémon that evolve with a Fire Stone are in the same egg group -- Field Group.